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SBM-20 TUBE SOVIET Military GEIGER MULLER GM COUNTER TESTED, US $15.99 – Picture 0
SBM-20 TUBE SOVIET Military GEIGER MULLER GM COUNTER TESTED, US $15.99 – Picture 0

Sbm-20 Tube Soviet Military Geiger Muller Gm Counter Tested

US $15.99

  • Kyiv, Kyiv, Ukraine
  • Jan 30th
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SBM-20 TUBE  SOVIET Military GEIGER MULLER GM COUNTER  TESTED   SPECIFICATIONS Parameters SBM-20 / SBM-20U Gas Filling Ne + Br2 + Ar Cathode Material Stainless Steel, 50 mkm Maximum Length (mm)GENERAL  108 / 101 Effective Length (mm) 91.0 / 83.5 Maximum Diameter (mm) 11 Effective Diameter (mm) 10 Connector Pin Operating Temperature Range 0C -60 to +70 WALL SPECIFICATIONS Parameters SBM-20 / SBM-20U Areal Density (mg/cm2) 40 Thickness (mm) 0.05 ELECTRICAL SPECIFICATIONS Parameters SBM-20 / SBM-20U Minimum Anode Resistor (meg ohm) 1.0 Recommended Anode Resistor (meg ohm)    5.1 Recommended Operating Voltage (volts) 400 Operating Voltage Range (volts) 350 - 475 Initial voltage (volts) 260 - 320 Plateau length (volts) at least 100 Maximum Plateau Slope (%/100 volts) 10 Minimum Dead Time (at U=400V, micro sec) 190 Working range (mkR/s) 0.004 - 40 Working range (mR/h) 0.014 - 144 Gamma Sensitivity Ra226 (cps/mR/hr) 29 Gamma Sensitivity Co60 (cps/mR/hr) 22 Inherent counter background (cps) 1 Tube Capacitance (pf) 4.2 Life (pulses) at least 2*1010 Weight (grams) 10 / 9 On Jul-13-14 at 16:11:46 PDT, seller added the following information:
Condition:
New other (see details): A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second or a new, unused item with defects. See the seller’s listing for full details and description of any imperfections. ...
Brand SBM-20
Country/Region of Manufacture Ukraine
Model SBM-20

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